Fatal Error when I activate a Plugin

Dear WP Team,

I installed to day a Plugin called FB VideoPressr, and when I try to activate the plugin there is a fatal error shown:

Fatal Error: Cannot redeclare class FacebookApiException in /home1/competf8/public_html/wp-content/plugins/FBVideoPressr/src/base_facebook.php on line 112

Could you please help me to resolve this problem?

Thanks in advance,

Virginia